1/2c. coarsely chopped pecans
8 Frango Mint chocolates, finely chopped (about1/2c.)
Position a rack in center of oven and preheat to 350 degrees. Butter bottom and sides of an 8-inch square baking pan. In top pan of a double boiler, melt butter. Remove from heat, add unsweetened chocolate and stir until chocolate has melted. Let mixture cool until tepid.
Meanwhile, in bowl of an electric mixer on medium speed, beat eggs until light and thickened, about 2 minutes. Gradually add sugar, then beat for an additional minute. Beat in melted butter-chocolate mixture and vanilla extract. Using a rubber spatula, fold in flour and salt. Fold in pecans and chopped Frango Mint chocolates. Spread batter evenly in prepared pan. Bake about 25 minutes, until a toothpick inserted halfway between center and edge of brownies comes out with a moist crumb. Do not overbake; brownies should be moist.